78671780

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{59}}^1$

素因数の和:138

約数の個数: 144

約数和(自身を含む): 201096000

約数和(自身を除く): 122424220

約数列:

[1, 2, 4, 5, 10, 11, 19, 20, 22, 29, 38, 44, 55, 58, 59, 76, 95, 110, 116, 118, 121, 145, 190, 209, 220, 236, 242, 290, 295, 319, 380, 418, 484, 551, 580, 590, 605, 638, 649, 836, 1045, 1102, 1121, 1180, 1210, 1276, 1298, 1595, 1711, 2090, 2204, 2242, 2299, 2420, 2596, 2755, 3190, 3245, 3422, 3509, 4180, 4484, 4598, 5510, 5605, 6061, 6380, 6490, 6844, 7018, 7139, 8555, 9196, 11020, 11210, 11495, 12122, 12331, 12980, 14036, 14278, 17110, 17545, 18821, 22420, 22990, 24244, 24662, 28556, 30305, 32509, 34220, 35090, 35695, 37642, 45980, 49324, 60610, 61655, 65018, 66671, 70180, 71390, 75284, 94105, 121220, 123310, 130036, 133342, 135641, 142780, 162545, 188210, 207031, 246620, 266684, 271282, 325090, 333355, 357599, 376420, 414062, 542564, 650180, 666710, 678205, 715198, 828124, 1035155, 1333420, 1356410, 1430396, 1787995, 2070310, 2712820, 3575990, 3933589, 4140620, 7151980, 7867178, 15734356, 19667945, 39335890, 78671780]

約数ペア:

[(1, 78671780), (2, 39335890), (4, 19667945), (5, 15734356), (10, 7867178), (11, 7151980), (19, 4140620), (20, 3933589), (22, 3575990), (29, 2712820), (38, 2070310), (44, 1787995), (55, 1430396), (58, 1356410), (59, 1333420), (76, 1035155), (95, 828124), (110, 715198), (116, 678205), (118, 666710), (121, 650180), (145, 542564), (190, 414062), (209, 376420), (220, 357599), (236, 333355), (242, 325090), (290, 271282), (295, 266684), (319, 246620), (380, 207031), (418, 188210), (484, 162545), (551, 142780), (580, 135641), (590, 133342), (605, 130036), (638, 123310), (649, 121220), (836, 94105), (1045, 75284), (1102, 71390), (1121, 70180), (1180, 66671), (1210, 65018), (1276, 61655), (1298, 60610), (1595, 49324), (1711, 45980), (2090, 37642), (2204, 35695), (2242, 35090), (2299, 34220), (2420, 32509), (2596, 30305), (2755, 28556), (3190, 24662), (3245, 24244), (3422, 22990), (3509, 22420), (4180, 18821), (4484, 17545), (4598, 17110), (5510, 14278), (5605, 14036), (6061, 12980), (6380, 12331), (6490, 12122), (6844, 11495), (7018, 11210), (7139, 11020), (8555, 9196)]